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444651-77-8

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444651-77-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 444651-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,6,5 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 444651-77:
(8*4)+(7*4)+(6*4)+(5*6)+(4*5)+(3*1)+(2*7)+(1*7)=158
158 % 10 = 8
So 444651-77-8 is a valid CAS Registry Number.

444651-77-8Relevant articles and documents

Oxo/imido heterometathesis of N-sulfinylamines and carbonyl compounds catalyzed by silica-supported vanadium oxochloride

Zhizhko, Pavel A.,Zhizhin, Anton A.,Zarubin, Dmitry N.,Ustynyuk, Nikolai A.,Lemenovskii, Dmitry A.,Shelimov, Boris N.,Kustov, Leonid M.,Tkachenko, Olga P.,Kirakosyan, Gayane A.

scheme or table, p. 108 - 118 (2011/11/14)

A series of silica-supported vanadium oxo complexes has been prepared via water-free grafting VOCl3 onto the silica surface. The obtained materials have been characterized with Raman, diffuse reflectance FTIR (DRIFT) and UV-vis, 51V

Discovery of chiral catalysts by asymmetric activation for highly enantioselective diethylzinc addition to imines: Using racemic and achiral diimines as effective activators

Liu, Hua,Zhang, Hai-Le,Wang, Shuang-Jun,Mi, Ai-Qiao,Jiang, Yao-Zhong,Gong, Liu-Zhu

, p. 2901 - 2907 (2007/10/03)

A library of chiral zinc complexes formed in situ by the combination of achiral and racemic diimines with 3,3′-di(3,5-ditrifluoromethylphenyl)- BINOL and diethylzinc were evaluated in the asymmetric addition of diethylzinc to N-acylimines. In the presence of 10 mol % of chiral ligand 4 and racemic diimine 5, high enantioselectivities of up to 97% ee and yields of up to 96% were achieved for a wide range of aromatic imines in dichloromethane at -30°C.

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